DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

An improved Dynamic material Characterisation of carbon/epoxy composites at intermediate strain rates

Yoo, Sanghyun and Catalanotti, Giuseppe and Toso, Nathalie and Toso, Yves and Voggenreiter, Heinz (2019) An improved Dynamic material Characterisation of carbon/epoxy composites at intermediate strain rates. Engineers Australia. The 22nd International Conference on Composites Materials (ICCM22), 11-16 August 2019, Melbourne, Australia. ISBN 9781925627220.

[img] PDF - Only accessible within DLR

Official URL: https://search.informit.com.au/documentSummary;dn=896847876950607;res=IELENG


This paper reports an experimental investigation on strain rate dependence of carbon/epoxy composites at intermediate strain rates. Dynamic tensile tests at strain rates between 0.1 and 200 per second are performed using a high-speed servo-hydraulic test machine equipped with an improved load introduction device. The data reduction analysis is performed to handle the inertial effect (i.e., system ringing on force measurement) during the testing. Load introduction technique is improved to mitigate the system ringing and lightweight grip systems are designed in order to increase the natural frequency of the test system. In addition, the inertial induced problems are resolved for strain measurement using Digital Image Correlation (DIC) technique. A general and robust experimental technique to characterise strain rate behaviour of carbon/epoxy composite materials are thoroughly investigated. As a result, an improved test protocol to perform dynamic mechanical testing at intermediate strain rates using a high-speed servo-hydraulic machine is proposed.

Item URL in elib:https://elib.dlr.de/139131/
Document Type:Conference or Workshop Item (Other)
Title:An improved Dynamic material Characterisation of carbon/epoxy composites at intermediate strain rates
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Yoo, SanghyunSanghyun.Yoo (at) dlr.dehttps://orcid.org/0000-0001-6924-1716
Catalanotti, Giuseppeg.catalanotti (at) qub.ac.ukhttps://orcid.org/0000-0001-9326-9575
Toso, NathalieNathalie.Toso (at) dlr.dehttps://orcid.org/0000-0003-2803-1450
Toso, YvesYves.Toso (at) dlr.deUNSPECIFIED
Voggenreiter, HeinzHeinz.Voggenreiter (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 3914-3922
EditorsEmailEditor's ORCID iD
Publisher:Engineers Australia
Series Name:ICCM22 2019
Keywords:Fibre-reinforced plastics composite; Test method; Intermediate strain rate; System ringing; Digital image correlation (DIC);
Event Title:The 22nd International Conference on Composites Materials (ICCM22)
Event Location:Melbourne, Australia
Event Type:international Conference
Event Dates:11-16 August 2019
Organizer:the International Committee on Composite Materials (ICCM)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Deposited By: Yoo, Sanghyun
Deposited On:08 Dec 2020 14:58
Last Modified:20 Jun 2021 15:54

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.